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Evelyn Solis
CHEM 131L
Prof. Carmen Artenie
Pre-Lab Fractional Crystallization
February 16, 2015
Experiment 3 Pre-Lab
The separation of mixture can be done by carrying one or more physical changes. This is
possible because pure substances have different p

June 7, 2016
Chapter 1 notes!
3. Preparation:
Most people at this point are close to taking action. Theyve thought about what they might do
and may even have come up with a specific plan.
4. Action:
In this stage, people begin to follow their action plans

June 20, 2016
Chapter 6 Notes!
Chapter 6: Addiction and Drug Abuse:
6.1 What Is Addiction?:
- List the characteristics of addiction.
- Distinguish between a habit and an addiction.
Addiction is a persistent, compulsive dependence on a behavior or substanc

Chem 131
EXAM 1 (Practice)
Name_
Spring 2016
* On calculation problems, you MUST show your set ups. When dimensional analysis is
specified, you MUST set up the problem by dimensional analysis.
* Use your time wisely. Do not get stuck on one question.
* An

Chapter 2 Worksheet
1. A hydrogen-filled balloon was ignited and 1.50 g of hydrogen reacted with 12.0 g of oxygen.
How many grams of water vapor were formed? (Assume that water vapor is the only product)
2. Two samples of carbon tetrachloride were decompo

HYDRATES
2009 by David A. Katz. All Rights reserved.
Reproduction permitted for education use provided original copyright is included.
OBJECTIVE
In this experiment, the properties of a hydrated compound will be investigated. The percent of water in a hydr

Experiment 14 Heat Effects and Calorimeter
Heat is a form of energy that pass spontaneously from high temperature to low temperature of an
object. The energy gained of an object will be the heat loss of the other object. The flow of
energy can be measured

Experiment 24 Pre-Lab Standardization of a Basic Solution
A neutralization reaction is when a strong base solution is mixed with strong acid
solution. This is the net ionic equation: H+(aq) + OH-(aq) H2O
Titration is a common method of determining the con

Evelyn Solis
CHEM 131L
Prof. Carmen Artenie
Pre-Lab
April 27, 2015
Experiment 13: The Geometrical Structure of Molecules
During this lab, we will construct different models of molecules and ions according to the octet
rule (there are exceptions, too). We

Pre-Lab Determination of Iron with Permanganate
Experiment 30: Determination of Iron with Permanganate
Potassium Permanganate (KMnO4) is used as an oxidizing agent in a volumetric analysis. In the
solution, MnO- ions reduce to Mn2+ as the equation shows:

Experiment 4 Pre-Lab
In this experiment, we will study and observe some properties of hydrates compounds.
We also will identify the hydrates in groups, observe the reversibility, and test the substance for
efflorescence or deliquescence. Finally, we will

Experiment: Determination of Iron in a Vitamin Pill
In this experiment, we will analyze a vitamin pill in order to determine the quantity of iron that is
contained in the pill. The form of iron present in the vitamin pill would be iron(ll) sulfate which
h

Experiment 12: The Alkaline Earths
In this experiment, we analyze the solubility of some salts of the alkaline Earths, the relative
oxidizing powers of the halogens, and identification of an Alkaline Earth Halide. The periodic
table is organized in order

Experiment: Determination of the Masses of Pieces of Magnesium
The purpose to this lab is to determine the mass of pieces of magnesium ribbon using Ideal Gas
Law and Daltons Law of Partial Pressures.
Magnesium reacts with hydrochloric acid to produce aque